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LT2 Intake 12697714: You Also Need Map Extension Harness https://gwatneyperformance.com/product/chevrolet-performance-lt2-intake-manifold-126977114/ LT1 Intake Bolts 12575384: https://sdparts.com/i-19883487-genuine-gm-parts-12575384-bolt-screw-int-manif.html Reused Old Intake Gasket Set 12626354: LT5 Throttle Body 12669871: https://www.amazon.com/ACDelco-12669871-Original-Equipment-Injection/dp/B07CJF9K8M/ref=sr_1_1?dchild=1&keywords=12669871&qid=1614923225&sr=8-1 Intake Adapter Plate ICT Billet 551784-LT1: https://www.amazon.com/Cylinder-Supercharger-Adapter-Manifold-551784-LT1/dp/B07DWGQBNT S&B Cold Air Intake: https://www.sbfilters.com/cold-air-intakes/silverado-sierra-1500-intake-75-5116?variant_id=195 Headers & Y Pipe: https://www.speed-engineering.com/shop-by-vehicle/2014-2017-gm-trucks/exhaust/headers-y-pipes/silverado-sierra-1-7-8-headers-y-pipe-2013-4-8l-5-3l-6-0l-6-2l-truck-suv.html 02 Extension Harness: https://www.speed-engineering.com/shop-by-vehicle/2014-2017-gm-trucks/exhaust/headers-y-pipes/silverado-sierra-12-o2-extension-2016-gm-truck-suv.html Belt Tensioner Pulley To Reroute Belt 231046: https://www.autozone.com/external-engine/idler-pulley/duralast-idler-pulley-231046/634105_0_0 Longer Belt We Used K060721: https://www.oreillyauto.com/detail/b/masterpro-belt-hose-4217/belts-hoses-16454/belts-25068/belt---serpentine-type-12828/eebb7a080a6d/masterpro-serpentine-belt/k060721/4435178